w 



Index to \'oL If 



535 



Page 

 Solea Pegusa, a species new to the 



British Fauna 467 



Differences between it and 



the Common Sole 468 



Solen acutidens 361 



altus 362 



tenuis 361 



Sorex Etruscus 253 



pygmseus 252 



SowERBY, G.B., on some new 

 species of Pentatrematitcs .... 89 

 On the recent species of 

 the genus Cvulum . . 145 

 Observations on the "Ac- 

 count of the genus 

 Dentalium,byM.G.P. 



Deshayes" 195 



Notes on Mr. Gray's 

 Additions and Cor- 

 rections to a Mono- 

 graph on Cypraea . . 217 

 Analysis of his Genera 

 of Recent and Fossil Shells . . 125 

 See also Broderip, W. J. Esq. 



Sparus lineatus 471,505 



Sargus 471 



Sphingidffi, typical forms of the 



larvae of 120 



Spiders, Crabs, and Insects, Dr. 



Heineken'sExperiments andOb- 



servations on the casting off and 



reproduction of the legs in 284, 422 



Spiders, reproduction of the legs 



of, only at the time of moulting 290 

 Spider, web- weaving, examination 

 of the statement of its having 



become a hunter 427 



Sprat, Differences between the 



Herring and the 466 



Stark, Mr. J., Analytical Notice 

 of his Elements of Natural His- 

 tory 3f 4 



Sterna affinis 393 



velox 393 



Strep.filas melanocephalus 356 



Strombidae, eyes of 171, ears of. . 171 

 Systems and Methods, Mr. W. S. 

 MacLeay's examination of Mr. 

 Bicheno's paper on 401 



Tapir of America, Mr Yarrell's 

 Observations on, 210 — its ana- 

 tomy, 210 — contrasted with that 



of the Sumatran Tapir 212 



Tellina alternidentata 363 



Burneti 362 



edentula 363 



incon.tpiriia 3^3 



Paqe 



Tellinides piapureus 363 



Terms, Entomological, necessity 



for new ones 482 



Testudo Europea 506 



Indica, Notes of a dissec- 

 tion of, 321 — structure 

 of its heart described 



by Mr. Guthrie- 322 



Testudo tabulata, Mr. Holberton's 



Notes on its Anatomy 325 



Tetrao Franklinii 490 



Richaidsonii 490 



Sabini 4S'0 



Urogallus, its trachea .... 503 



Urophasianellu.i 490 



Urophasianus 490 



Thalassidroma Wilsonii 104 



Themiste, a new genus of Radiata 498 

 Thompson, J. V. Esq., Analysis of 

 his Zoological Researches and 



Illustrations No. 1 '. . . 248 



Torpedo, Abstract of Sir Humphry 

 Davy's account of some experi- 

 ments on the 500 



Tortoises, Abstract of Mr. Bell's 



Remarks on some living- 500 



Tetanus fuscus ? 92 



Tracheae of Birds, Abstract of Mr. 



Yarrell's remarks on some .... 503 

 Trichotropis, a new genus of uni- 

 valve shells 373 



Trichotropis bicarinata 374 



borealis 375 



Tringa rufesccns 492, 501 



Tristoma 259 



Trogus 495 



Trumpeter, Abstract of Mr Yar- 

 rell's remarks on the Osteology 



of the 504 



Turbo bicarinatus 374 



Ttjrannulus Vieilloti 491 



Unicorn, M. Riippell's remarks on 



the, analysed 389 



Uria brevirostris 357 



Uromastyx dispar 394 



ornatus 393 



spinipes 393 



Ursus longirostris 253 



Urus 254 



Vanessa Urticae, monstrosity in 



the 133 



Venus Gnidia 364 



Vermetus 497 



Vermetus pellucidus 369 



Vespertilio Capensis 435 



murinus 503 



